<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>Opens a Sybase server connection</title>

 </head>
 <body><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="function.sybase-close.html">sybase_close</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="function.sybase-data-seek.html">sybase_data_seek</a></div>
 <div class="up"><a href="ref.sybase.html">Sybase 函数</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="function.sybase-connect" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">sybase_connect</h1>
  <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">sybase_connect</span> &mdash; <span class="dc-title">Opens a Sybase server connection</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.sybase-connect-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">resource</span> <span class="methodname"><strong>sybase_connect</strong></span>
    ([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$servername</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$username</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$password</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$charset</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$appname</code></span>
   [, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$new</code><span class="initializer"> = false</span></span>
  ]]]]]] )</div>

  <p class="para rdfs-comment">
   <span class="function"><strong>sybase_connect()</strong></span> establishes a connection to a
   Sybase server. 
  </p>
  <p class="para">
   In case a second call is made to
   <span class="function"><strong>sybase_connect()</strong></span> with the same arguments, no
   new link will be established, but instead, the link identifier of
   the already opened link will be returned.
  </p>
  <p class="para">
   The link to the server will be closed as soon as the
   execution of the script ends, unless it&#039;s closed earlier by
   explicitly calling <span class="function"><a href="function.sybase-close.html" class="function">sybase_close()</a></span>.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.sybase-connect-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">servername</code></em></dt>

     <dd>

      <p class="para">
       The servername argument has to be a valid servername that is defined
       in the &#039;interfaces&#039; file.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">username</code></em></dt>

     <dd>

      <p class="para">
       Sybase user name
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">password</code></em></dt>

     <dd>

      <p class="para">
       Password associated with <em><code class="parameter">username</code></em>.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">charset</code></em></dt>

     <dd>

      <p class="para">
       Specifies the charset for the connection
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">appname</code></em></dt>

     <dd>

      <p class="para">
       Specifies an <em>appname</em> for the Sybase connection.
       This allow you to make separate connections in the same script to the
       same database. This may come handy when you have started a transaction
       in your current connection, and you need to be able to do a separate
       query which cannot be performed inside this transaction.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">new</code></em></dt>

     <dd>

      <p class="para">
       Whether to open a new connection or use the existing one.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.sybase-connect-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns a positive Sybase link identifier on success, or <strong><code>FALSE</code></strong> on
   failure.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.sybase-connect-changelog">
  <h3 class="title">更新日志</h3>
  <p class="para">
   <table class="doctable informaltable">
    
     <thead>
      <tr>
       <th>版本</th>
       <th>说明</th>
      </tr>

     </thead>

     <tbody class="tbody">
      <tr>
       <td>5.3.0</td>
       <td>
        The <em><code class="parameter">new</code></em> parameter was added.
       </td>
      </tr>

      <tr>
       <td>4.2.0</td>
       <td>
        The <em><code class="parameter">appname</code></em> parameter was added.
       </td>
      </tr>

      <tr>
       <td>4.0.2</td>
       <td>
        The <em><code class="parameter">charset</code></em> parameter was added.
       </td>
      </tr>

     </tbody>
    
   </table>

  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.sybase-connect-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-2129">
    <p><strong>Example #1 <span class="function"><strong>sybase_connect()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$link&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">sybase_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'SYBASE'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">''</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">''</span><span style="color: #007700">)<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;or&nbsp;die(</span><span style="color: #DD0000">"Could&nbsp;not&nbsp;connect&nbsp;!"</span><span style="color: #007700">);<br />echo&nbsp;</span><span style="color: #DD0000">"Connected&nbsp;successfully"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">sybase_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.sybase-connect-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.sybase-pconnect.html" class="function" rel="rdfs-seeAlso">sybase_pconnect()</a> - Open persistent Sybase connection</span></li>
    <li class="member"><span class="function"><a href="function.sybase-close.html" class="function" rel="rdfs-seeAlso">sybase_close()</a> - Closes a Sybase connection</span></li>
   </ul>
  </p>
 </div>


</div><hr /><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="function.sybase-close.html">sybase_close</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="function.sybase-data-seek.html">sybase_data_seek</a></div>
 <div class="up"><a href="ref.sybase.html">Sybase 函数</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
